JP2002199558A - Structure and tool for fixing corrugated tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a wire harness with a corrugated tube from being twisted, broken, and damaged when the wire harness with the corrugated tube is bent along a vehicle body, etc. SOLUTION: Recessed grooves 11 of a corrugated tube 2 with a circular cross section are engaged with slidably contact support parts 10, 24 of a fixing tool 1 to be supported turnably in the circumferential direction. If the corrugated tube has an oval cross section, the corrugate tube is fixed inside a turning member on an outer circumference and the turning member is turnably held inside the fixing tool body in the circumferential direction. The turning member may be moved forward and backward along a cam groove or the harness may be held by the turning member biased in an oblique direction. The fixing tool 1 comprises a receiving part 3 and a lid part 4, and has the slidably contact support parts 10, 24 for engaging with the recessed grooves 11. Curved walls may be provided in the receiving part 3 and the lid part 4 to correct the corrugated tube 2 so as to have a curved shape, and the corrugated tube 2 and wires may be prevented from being broken.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can prevent a wire harness using a flexible corrugated tube for protecting electric wires from being twisted or bent when bending and laying along a mounting side of a vehicle body or the like. And a corrugated tube fixing device.

[0002]

2. Description of the Related Art FIG. 12 shows a conventional structure for fixing a corrugated tube. The corrugated tube 71 is formed of a synthetic resin into a thin cylindrical shape, and has circumferential grooves and ridges alternately arranged at equal pitches in the tube longitudinal direction in parallel, and is rich in flexibility and has a plurality of tubes inside. The wire harness 73 is constituted by inserting the electric wire 72 of the above.

A corrugated tube 71 functions as an electric wire protection tube, and easily bends together with a plurality of electric wires 72 corresponding to a two-dimensional or three-dimensionally curved panel 75 on a mounting side 74 of a vehicle body or the like. In addition, the workability of arranging the wire harness 73 is improved.

The corrugated tube 71 has a slit provided in the longitudinal direction and a slit not provided.
With a slit, the electric wire 72 can be easily inserted into the corrugated tube 71 from the slit. Although the insertion work of the electric wire 72 is troublesome in the case without the slit, there is no need to worry about the opening of the slit, and it is not necessary to wind the vinyl tape to prevent the opening of the slit.

A corrugated tube fixing device (hereinafter simply referred to as a fixing device) 76 is configured as, for example, a clamp for pressing the corrugated tube 71 against the panel 75 on the mounting side 74. The fixture 76 is attached to at least the mounting side 7 of the vehicle body or the like.
4 is always arranged at the bent portion. It is also possible to use a binding device such as a band as the fixing device.

The fixture 76 is fixed to the panel 75 on the mounting side 74 with a flexible locking clip or a screw. The locking clip has a pair of flexible locking pieces and is inserted and locked in the hole of the panel 75. When using a screw (not shown), a screw is inserted into the hole of the bracket of the fixture 76 and screwed into the screw hole of the panel 75 to be fixed.

The wire harness 73 is routed along the curved surface of the mounting side 74 of the vehicle body or the like, and the outer corrugated tube 71 is firmly fixed to the mounting side 74 by a plurality of fixing members 76 in the longitudinal direction. Thereby, the wire harness 73
Is firmly fixed to the mounting side 74, and, for example, run-out due to vibration or the like during running of the vehicle, interference between the vehicle body (the mounting side 74) and the wire harness 73, and abnormal noise associated therewith are prevented.

The electric wire 72 in the corrugated tube 71 is protected from rainwater, dust and the like by the corrugated tube 71 and, for example, along with a vehicle body (74), an instrument panel, a floor or a door (a hinge type door or a sliding type). Door), and is connected via a connector to such electrical components and auxiliary equipment.

[0009]

However, in the above-mentioned conventional corrugated tube fixing structure and corrugated tube fixing tool 76, the wire harness 73 is fixed at the bending position of the three-dimensional mounting side 74 of the vehicle body or the like. Therefore, when the corrugated tube 71 is firmly fixed with the fixture 76, the electric wire 72 and the corrugated tube 71 are bent and twisted, and the torsion stress is received by the corrugated tube itself, and the deformation and deformation of the corrugated tube 71 are caused. When the slit is opened, there is a concern that the inner electric wire 72 jumps out and is stepped on by a foot, and water or dust enters from the opened portion when the slit is opened.

[0010] Further, since the corrugated tube 71 is under tension, the fixing member 76 is easily pulled and detached, and the workability of assembling the vehicle body or the like is poor. The harness wanders,
There was also concern that interference with the vehicle body and the like would occur.

Further, in the case where the wire harness 73 is largely bent and routed, or when the wire harness 73 is largely swung about the fixture 76 as a fulcrum, the end of the fixture 76, that is, the corrugated tube 71 is led out. The wire harness 73 including the corrugated tube 71 is easily bent at the opened opening, and in that case, there is a problem that the corrugated tube 71 and the internal electric wire 72 are easily damaged.

In view of the above, the present invention prevents the corrugated tube from being twisted at the time of wiring fixation of the wire harness using the corrugated tube, improves the assembling workability, and improves the corrugated tube due to the twist. Corrugated tube that can reliably function as a corrugated tube as a harness protection tube by preventing deformation, damage, opening of slits, etc., and also prevent the fixture from coming off due to the tension of the corrugated tube It is a first object to provide a fixing structure and a corrugated tube fixing device. In addition, in addition to the above, when the wire harness is largely bent and routed, or when the wire harness is largely shaken, a wire harness, that is, a corrugated tube fixing device that can prevent damage to the corrugated tube and the internal electric wire. The second purpose is to provide.

[0013]

In order to achieve the above-mentioned object, the present invention provides a method for manufacturing a semiconductor device by inserting a plurality of electric wires inside a corrugated tube having a circular cross section having alternately concave grooves and ridges in a circumferential direction. In a corrugated tube fixing structure for forming a wire harness and fixing the corrugated tube to a mounting side of a vehicle body or the like, a sliding contact support portion of the fixing device is slidably engaged with a concave groove of the corrugated tube. The first corrugated tube fixing structure is characterized in that the corrugated tube is rotatably supported in the circumferential direction by the sliding contact support portion (claim 1). Further, a wire harness is formed by inserting a plurality of electric wires inside a corrugated tube having alternately concave grooves and convex ridges in the circumferential direction, and the corrugated tube is fixed to a mounting side of a vehicle body or the like with a fixture. In the corrugated tube fixing structure, the corrugated tube is fixed inside a rotating member having a circular outer periphery, and the rotating member is held inside the fixture body so as to be rotatable in the circumferential direction. The structure for fixing the second corrugated tube is also employed. (Claim 2). 3. The corrugated tube fixing structure according to claim 2, wherein a cam groove is provided on one of the fixture body and the rotating member, and a protrusion is provided on the other of the corrugated tube along the cam groove. It is also effective that the turning member can be moved in the longitudinal direction of the wire harness simultaneously with the turning (claim 3). 4. The corrugated tube fixing structure according to claim 2, wherein an inner diameter portion for holding the corrugated tube immovably is provided on the rotating member so as to be eccentric in an oblique direction, and the wire harness is eccentric in the inner diameter portion. 5. It is also effective to be able to bend with a large bending radius (claim 4). In the fixing structure for a corrugated tube according to claim 4, it is also effective to provide a curved wall for the wire harness on the fixture body on the eccentric side of the inner diameter portion (claim 5). In the structure for fixing a corrugated tube according to any one of claims 2 to 5, it is also effective that the corrugated tube has an oval cross section (claim 6). Further, a corrugated tube fixing device for fixing a corrugated tube having a circular cross section having alternating circumferential grooves and convex ridges to a mounting side of a vehicle body or the like,
The corrugated tube includes a receiving portion that holds the corrugated tube rotatably in the circumferential direction and a lid portion, and the receiving portion and the lid portion include a sliding contact support portion that slidably engages with the concave groove. A corrugated tube fixing device characterized by the above feature is also employed (claim 7). 8. The corrugated tube fixing device according to claim 7, wherein the receiving portion and the lid have a semicircular or arcuate concave portion facing each other, and the sliding contact support portion is formed on the periphery of each concave portion. (Claim 8). The corrugated tube fixing device according to claim 7 or 8, further comprising: a rotating member that fixes a corrugated tube having an oblong cross section having alternating circumferential grooves and ridges inside,
It is also effective to hold the rotating member between the receiving portion and the lid portion so as to be rotatable in the circumferential direction. Also,
A corrugated tube fixing device for fixing a corrugated tube having a circular cross section or an elliptical shape having alternating circumferential grooves and ridges to a mounting side of a vehicle body or the like, and a rotating member for fixing the corrugated tube inside. And a receiving portion for holding the rotating member rotatably in the circumferential direction and a lid portion, and a corrugated tube fixing device is also adopted (claim 10). The corrugated tube fixing device according to claim 10, wherein the rotating member is dividable, and each of the divided members has an inner diameter portion having a circular or elliptical cross section according to the shape of the corrugated tube. It is also effective that a ridge engaging with the concave groove of the corrugated tube is formed (claim 11). The corrugated tube fixing device according to claim 10, wherein a ridge and / or a circumferential groove is provided on an outer periphery of the rotating member, and the ridge and / or the circumferential groove are provided on the receiving portion and the lid portion. It is also effective that a sliding contact groove and / or a sliding contact ridge to be slidably engaged are formed (claim 12). 12. The corrugated tube fixing device according to claim 10, wherein a cam groove is provided in one of the rotating member and the receiving portion and / or the lid portion, and one of the rotating member and the lid is driven by the cam groove. It is also effective that the projections are provided (claim 13).
The corrugated tube fixing device according to claim 13,
It is also effective that the cam groove has a starting end and a terminating end, and the driven projection can contact the starting end and the terminating end. The corrugated tube fixing device according to claim 10, wherein the rotating member, and each of the receiving portions and the lid housing portions that rotatably hold the rotating member are formed in a tapered shape, It is also effective that the inner diameter portion of the rotating member is provided eccentrically in an oblique direction.
5). The corrugated tube fixing device according to any one of claims 7 to 15, wherein the receiving portion and / or the lid portion are provided with an outwardly curved wall for bringing an outer peripheral surface of the corrugated tube into contact with the receiving portion and / or the lid portion. It is also effective to prevent the wire harness from being bent. In the corrugated tube fixing device according to claim 16, it is also effective that the curved wall is provided to face left and right and / or up and down on the outlet side of the corrugated tube (claim 17). In the corrugated tube fixing device according to any one of claims 7 to 17, it is also effective that the receiving portion and the lid portion and / or each of the divided members are rotatably connected by a hinge (claim 18). ). In the corrugated tube fixing device according to any one of claims 7 to 18, it is also effective that the receiving portion and the lid portion are fixed by locking means (claim 19). Claims 7-1
In the corrugated tube fixing device according to any one of claims 9, it is also effective that the receiving portion is provided with a locking clip that is inserted and engaged with a hole on the mounting side of the vehicle body or the like (Claim 20). ).

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show a first embodiment of a corrugated tube fixing structure and a corrugated tube fixing device according to the present invention.

This corrugated tube fixing structure is characterized in that a corrugated tube 2 having a circular cross section of a wire harness is held on a corrugated tube fixing device 1 that can be divided into upper and lower portions so as to be rotatable in the circumferential direction and immovable in the longitudinal direction. I do.

As shown in FIG. 1, a corrugated tube fixing device (hereinafter simply referred to as a fixing device) 1 is made of synthetic resin.
It comprises a lower receiving part 3 and an upper lid part 4. The receiving portion 3 includes a rectangular frame-shaped peripheral wall 5 and a bottom wall 6 orthogonal to the peripheral wall 5.
The peripheral wall 5 is composed of opposed front and rear walls 7, 7 and left and right walls 8, 8, and the front and rear walls 7, 7 support the circular corrugated tube 2 rotatably in the circumferential direction. A semi-circular concave portion 9 is formed by notching, and a sliding contact support portion 10 is formed on the periphery of the concave portion 9 as a guide portion which engages with a gap in the concave groove 11 of the corrugated tube 2.

The pitch of the sliding support portion 10, that is, the distance between the front and rear wall portions 7, 7 is set to a multiple (1 time, 2 times, 3 times or...) Of the pitch of the concave groove 11 of the corrugated tube 2. It goes without saying that the concave grooves 11 are alternately arranged in parallel with the ridges 12 in the longitudinal direction of the tube at a plurality of equal pitches. The plate thickness of the sliding contact support portion 10, that is, the plate thickness of the front and rear wall portions 7 is set slightly smaller than the width S of the concave groove 11 of the corrugated tube 2. The radius of the concave portion 9 is
The outer diameter is set to a half of the outer diameter, ie, slightly larger than the radius.

The inside of the receiving portion 3 is a rectangular space for accommodating the lower half of the corrugated tube 2. Note that the inside of the receiving portion 3 may have a semicircular groove shape along the outer periphery of the corrugated tube 2. In this case, the sliding contact support portion 10 is protruded in a flange shape. The sliding contact support 10 does not necessarily have to be continuous in a semicircular shape.

The bottom wall 6 of the receiving portion 3 is provided with a locking clip 1 which is inserted and engaged with a hole (not shown) on the mounting side of a vehicle body or the like.
3 are integrally provided. The locking clip 13 is the bottom wall 6
And a pair of flexible locking pieces 15 inclined obliquely upward at the tip of the pillar 14. The locking clip 13 is rotatably engaged with a hole of a vehicle body or the like, and can appropriately rotate the fixing tool 1 according to the bending of the wire harness to absorb bending stress. In place of the locking clip 13, a bolt may be inserted through a hole of a bracket (not shown) extending from the bottom wall 6 and fixed to the mounting side.

The left and right walls 8 of the receiving part 3 are provided with locking projections 16 for the lid 4. The locking projection 16
The lid 4 has an upwardly inclined surface 16a with respect to the engagement frame piece 17 and a downwardly engaging surface 16b. The locking projection 16 and the engaging frame piece 17 may be arranged upside down. The locking projection 16 and the engaging frame piece 17 constitute locking means.

The cover part 4 has a rectangular frame-shaped peripheral wall 19 and an upper wall 20 orthogonal to the peripheral wall 19, like the receiving part 3, and the peripheral wall 19 includes front and rear wall parts 21 and left and right wall parts 22. The groove 1 of the corrugated tube 2 is formed in the front and rear wall portions 21.
A semicircular concave portion 23 for rotatably engaging the first groove 1 is formed, and a peripheral edge of the concave portion 23 serves as a sliding contact support portion 24 which is a guide portion for the concave groove 11.

The pitch of the sliding support portions 24, that is, the distance between the front and rear wall portions 21 is set to a multiple (1 time, 2 times, 3 times or...) Of the pitch of the concave grooves 11 of the corrugated tube 2. The plate thickness of the sliding contact support portion 24, that is, the plate thickness of the front and rear wall portions 21 is set to be slightly smaller than the width S of the concave groove 11 of the corrugated tube 2. The radius of the concave portion 23 is set to １ ／ of the outer diameter of the concave groove 11, that is, slightly larger than the radius. The concave portion 23 of the lid portion 4 has the same diameter as the concave portion 9 of the receiving portion 3, and the sliding contact support portion 24 of the lid portion 4 faces the sliding contact supporting portion 10 of the receiving portion 3 with the same thickness.

The inside of the lid 4 is a rectangular space for accommodating the lower half of the corrugated tube 2. The inside of the lid 4 may have a semicircular groove shape along the outer periphery of the corrugated tube 2. In this case, the sliding contact support portion 24 is provided to protrude in a flange shape.

On the left and right walls 22 of the lid 4, the flexible engagement frame pieces 17 are formed so as to hang down. The engagement frame pieces 17 have engagement holes 25 for the locking projections 16. The left or right wall 22 of the lid 4 is integrally connected to the left or right wall 8 of the receiving part 3 via a thin hinge (not shown), and the lid 4 is moved in the closing direction. It may be rotatable.

The corrugated tube 2 is inserted into each of the concave portions 9 and 23 of the receiving portion 3 and the lid portion 4 so that the lid portion 4 is received.
The concave portions 9 and 23 are combined into a circular shape to form one annular sliding contact support portion.

As shown in FIG. 2, the lower half of the corrugated tube 2 is rotatably supported by the receiving portion 3, and the upper half of the corrugated tube 2 is rotatably supported by the lid 4. The front wall 7 of the receiving part 3 and the front wall 21 of the lid part 4 are located on the same plane in the vertical direction, and the recesses 9, 23 (FIG. 1) of the front walls 7, 21 are vertically opposed to each other. The contact support portions 10 and 24 engage above and below the concave groove 11 of the corrugated tube 2. Similarly, the rear wall 7 of the receiving part 3 and the rear wall 21 of the lid part 4 have respective concave portions 9 and 2.
3 (FIG. 1) are vertically opposed, and their sliding contact support portions 10, 2
4 engages above and below the concave groove 11 of the corrugated tube 2. The front and rear sliding contact support portions 10 and 24 are engaged with the longitudinal front and rear concave grooves 11 of the corrugated tube 2, so that the corrugated tube 2 is stably held so as to be stationary in the longitudinal direction and rotatable in the circumferential direction. .

As shown in the enlarged view in the circle of FIG. 2, the bottom surface of the concave groove 11 of the corrugated tube 2, the receiving portion 3 and the lid portion 4 are shown.
Between the sliding contact support portions 10, 24, which are the peripheral edges of the concave portions 9, 23, and the side surfaces of the concave groove 11, and the sliding contact support portions 10, 2.
A slight gap L ₁ , L ₂ is formed between the side wall 4 and the side wall 4, so that the corrugated tube 2 can smoothly rotate in the circumferential direction in the fixture 1.

Since the corrugated tube 2 is held by the fixture 1 so as to be rotatable in the circumferential direction, the locking clip 13 of the fixture 1 is fixed to the hole 2 of the panel 26 on the mounting side 28 of the vehicle body or the like.
When the fixing device 1 is fixed by being locked to the lock 7, even if a strong force in the torsion direction acts on the corrugated tube 2, the corrugated tube 2 rotates in the circumferential direction to absorb (release) the torsion force. The deformation of the corrugated tube 2 in the fixture 1 and the opening of the slit (not shown) for inserting the wire harness do not occur, so that the damage of the corrugated tube 2 and the breakage of the electric wire (not shown) due to jumping out are prevented. You.

The torsion of the corrugated tube 2 occurs when the corrugated tube 2 is fixed to the two- or three-dimensionally curved panel 26 of the mounting side 28 of the vehicle body or the like, as described in the prior art. By absorbing the torsion of the corrugated tube 2, the corrugated tube 2 can be fixed to these curved panels 26 easily and with good workability.

After the fixture 1 is attached to the corrugated tube 2, the fixture 1 is locked to a panel 26 such as a vehicle body, or the receiving portion 3 is locked to a panel 26 such as a vehicle body, The tube 2 is engaged with the receiving portion 3 and then the lid portion 4 is combined with the receiving portion 3.

In FIG. 2, the internal space 2 of the corrugated tube 2 is shown.
Needless to say, a plurality of electric wires (not shown) are inserted through 9 in advance. At least a plurality of electric wires and the corrugated tube 2 constitute a wire harness.

The electric wire can be easily inserted into the corrugated tube 2 through the slit in the longitudinal direction. However, in the corrugated tube 2 having no slit, the electric wire can be inserted through the front and rear circular openings. The corrugated tube 2 without a slit has no catch at the time of rotation in the circumferential direction, and can rotate more smoothly inside the fixture 1.

In the corrugated tube 2 having a slit, a vinyl tape is wound around the outer periphery of the corrugated tube 2 before and after the fixture 1, so that the slit is closed and the peripheral wall of the corrugated tube 2 is overlapped in the slit. The concave groove 11 of the tube 2 can be smoothly brought into sliding contact with the sliding contact support portions 10 and 24 of the lid portion 4 and the receiving portion 3 without being caught.

The shapes of the receiving portion 3 and the cover portion 4 are not limited to the rectangular frame shape, but may be an arc shape along the outer periphery of the corrugated tube 2. In this case, the receiving portion 3 and the lid 4
Is reduced, and the fixture 1 is made compact. Even in this case, the lid 4 is connected via a hinge (not shown).
The receiving portion 3 can be opened and closed freely.

The receiving part 3 and the lid part 4 are connected to a horizontal panel 26.
Are arranged vertically, but the vertical panel 26
Are arranged on the left and right. In this specification, the definitions of up, down, left, right, front and rear are merely for convenience of explanation. In an actual use form, for example, the upside down may be reversed, and the receiving part 3 may be located on the upper side and the lid part 4 may be located on the lower side.

FIG. 3 shows a corrugated tube fixing structure and a corrugated tube fixing device according to a second embodiment of the present invention. The fixing structure of the corrugated tube is such that a flat corrugated tube 32 having an elliptical cross section is fixed to an inner diameter portion 35 of a rotating member 33, and a fixing tool body 38 including a receiving portion 36 and a lid portion 37 of the rotating member 33. , So as to be rotatable in the circumferential direction and fixed in the longitudinal direction.

The flat corrugated tube 32 is made of the same material as the corrugated tube 2 having the circular cross-section described above in terms of the material and the depth and pitch of the grooves 40 and the ridges 41. It is flattened so that it can be routed in the space.
And 3.

The corrugated tube fixing device (hereinafter, simply referred to as a fixing device) 39 is made of synthetic resin and receives the lower receiving portion 36, the upper lid portion 37, and the flat corrugated tube 32 while holding the same. The rotating member 33 is rotatably mounted between the portion 36 and the lid portion 37.
The difference from the first embodiment is that a rotating member 33 is used. The fixing part main body 38 is constituted by the receiving part 36 and the lid part 37.

The rotating member 33 is divided into upper and lower portions, and a substantially circular outer diameter portion 44 and an elliptical inner diameter portion 35 are formed in a state where the substantially semicircular divided members 34 and 34 are united. The left and right division surfaces 45 of each division member 34 are joined without any gap.

On the outer periphery (outer diameter portion 44) of each divided member 34, a pair of front and rear semi-annular ridges 46 for sliding with respect to the receiving portion 36 and the lid portion 37 are formed so as to protrude in the circumferential direction.
The pair of protrusions 46 are close to each other via the peripheral groove 47. Each of the semi-annular upper and lower ridges 46 is aligned when the upper and lower divided members 34 are combined to form an annular ridge. Each of the pair of front and rear ridges 46 has the same height and a substantially rectangular cross section, and the tip of the ridge 46 is formed smoothly without edges. A pair of ridges 4 before and after
Instead of 6, a pair of front and rear ridges can be used.

On the inner periphery (inner diameter portion 35) of each divided member 34, a pair of front and rear semi-elliptical ridges 48 for fixing to the concave groove 40 of the flat corrugated tube 32 are formed. The upper and lower ridges 48 of the semi-elliptical shape are the upper and lower divided members 3.
At the time of merging of No. 4, a semi-circular ridge is formed. The pitch of the front and rear ridges 48 is the concave groove 4 of the flat corrugated tube 32.
Equal to a pitch of zero. The pitch of the concave grooves 40 is uniform.

The inner diameters (long and short diameters) of the elliptical ridges (48) when the upper and lower ridges 48 of the dividing member 34 are combined are the outer diameters of the concave grooves 40 of the flat corrugated tube 32 ( And the width of each ridge 48 is set slightly smaller than the width of the concave groove 40, and the tip of the ridge 48 has a smooth radius (curved) shape. The tube 32 can be fixed smoothly without rattling in the vertical and horizontal directions and without being caught. If the protruding ridge 48 is formed so as to project in a tapered shape with a substantially mountain-shaped cross section, and the tip is curved in a round shape, the engagement with the concave groove 40 when the corrugated tube is mounted can be performed more smoothly.

The receiving portion 36 and the lid portion 37 have semicircular groove-shaped receiving portions 49 and 50 for the annular rotating member 33, respectively, and the outside of each of the receiving portions 49 and 50, that is, the receiving portion 36 and the lid portion 37 are provided. The front and rear ends have semicircular flanges 51 and 52 having a diameter smaller than the inner diameters of the housing portions 49 and 50, and the rotating member 33 is rotated inside the pair of front and rear flanges 51 and 52 in the circumferential direction. It can be movably accommodated.

On the inner periphery of each of the housing portions 49 and 50, a sliding contact groove 53 as a guide groove for each of the pair of front and rear ridges 46 on the outside of each divided member 34, and between the pair of front and rear ridges 46 is provided. Sliding contact protrusions 54 as guide protrusions with respect to the circumferential groove 47 are formed respectively. The depth of each sliding contact groove 53 between the receiving portion 36 and the lid portion 37 and the height of the sliding contact ridge 54 are set to be substantially the same or the sliding contact ridge 54 is set lower. Sliding ridge 5
4 is necessary when a pair of front and rear ridges 46 is used for the rotating member 33, and when the pair of front and rear ridges 46 is used, a pair of front and rear Sliding groove 53
It is only necessary to form only. The sliding contact groove 53 and the sliding contact ridge 54 on the lid portion 37 are not shown. Receiving part 36 and lid part 3
7 is in contact with the ridge 46 of the rotating member 33 with a slight gap therebetween, so that the rotating member 33 is moved between the receiving portion 36 and the lid portion 37 in the circumferential direction. It is freely rotatable smoothly. The flanges 51 and 52 and the sliding contact ridge 54 are
3 serves as a sliding contact support portion.

The pair of divided members 34 need not be locked to each other, and the upper and lower housing portions 49 and 50 are completely circular in a state where the lid portion 37 is combined with the receiving portion 36, and the pair of divided members 34 With the flat corrugated tube 32 fixed to the inner diameter portion 35, the divided member 34 can smoothly rotate in the circumferential direction. It is also possible to provide a positioning pin (not shown) and an engaging hole for the positioning pin on the division surface 45 of each division member 34.

As in the first embodiment, the receiving portion 36
Locking projections 56 are provided on left and right wall portions 55 of the
In the left and right wall portions 57, engagement holes 59 for the locking projections 56 are formed.
Are provided. The bottom wall 60 of the receiving portion 36 is provided with a locking clip 61 for a panel on the mounting side such as a vehicle body. The locking clip 61 is the same as that of the first embodiment.

It is also possible to use fixing means such as a bracket and a bolt instead of the locking clip 61. Further, the lid 37 can be integrally connected to the receiver 36 via a thin hinge (not shown).

As a method of assembling the fixing tool 39, for example, after the flat corrugated tube 32 is sandwiched between the upper and lower divided members 34 (at this time, the projections 48 inside the divided members 34 are recessed of the corrugated tube 32). The lower member 36 engages with the rotating member 33 composed of the upper and lower divided members 34.
And the lid 37 is combined with the receiving portion 36. As a result, the ridge 46 on the outer periphery of the annular divided member 34 is engaged with the sliding contact groove 53 between the receiving portion 36 and the lid 37 slidably in the circumferential direction. Next, the locking clip 61 of the receiving portion 36 is inserted and engaged with a hole of a panel such as a vehicle body.

Alternatively, first, the engaging clip 61 of the receiving portion 36 is inserted into and engaged with the hole of the panel of the vehicle body or the like, and then the lower dividing member 34 is set in the receiving portion 36. It is also possible to set the flat corrugated tube 32 in the inner diameter portion 35, set the upper dividing member 34 from above the corrugated tube 32, and combine the lid portion 37 with the receiving portion 36.

Also, any ridges 46 are formed on the outer periphery of the rotating member 33.
The flange 5 at the front and rear ends of the receiving portion 36 and the lid portion 37 is not provided.
It is also possible to hold the rotating member 33 so as to be freely rotatable in the circumferential direction by using only the members 1 and 52. In this case, a semicircular receiving groove 4 is provided inside each of the receiving portion 3 and the lid portion 4 of the first embodiment (FIG. 1).
9 and 50 are formed. Alternatively, it is also possible to eliminate the flanges 51 and 52 in FIG. 3 and support the rotating member 33 with the sliding contact groove 53 and / or the sliding contact protrusion 54.

Further, a pair of divided members 34 are connected by a hinge (not shown), or a rotating member is integrally formed in a non-divided and annular shape, and a pair of upper and lower members is formed on a peripheral wall of the rotating member (not shown). A slit-shaped hole is provided, and a holding plate (not shown) instead of the ridge 48 is inserted and fitted into each hole, and the leading end of the holding plate is engaged with the concave groove 40 of the flat corrugated tube 32. Alternatively, the corrugated tube 32 can be fixed in the circular inner peripheral portion of the rotating member.

In any case, even if a torsion force is applied to the flat corrugated tube 32 when the fixing tool 39 is fixed to arrange the wire harness on a panel having a two-dimensional or three-dimensional curved surface, the corrugated tube is not affected. The rotating member 33 holding the rotating member 32 rotates in the circumferential direction between the receiving portion 36 and the lid portion 37 to absorb (release) the torsion. No force is applied, and the deformation and damage of the corrugated tube 32, the opening of the slit for inserting the electric wire, and the like are prevented, and the wiring harness can be routed smoothly. Note that, instead of the flat corrugated tube 32, a corrugated tube 2 having a round cross section shown in FIG. 1 can be used. In this case, the inner diameter portion (35) of the rotating member (33) is not an oblong shape but a true circular shape. Round corrugated tube 2 via rotating member
Is rotatably supported by the fixture 39, so that sliding wear of the corrugated tube 2 with respect to the fixture body 38 is prevented.

FIGS. 4 and 5 show a third embodiment of a corrugated tube fixing structure and a corrugated tube fixing device according to the present invention.

The corrugated tube fixing structure is such that the corrugated tube 2 having a circular cross section is rotatably supported in a circumferential direction in a synthetic resin corrugated tube fixing device 62 comprising a receiving portion 63 and a lid portion 64 as shown in FIG. At the same time, outwardly curved arc-shaped curved walls 65 are formed on both left and right sides of the receiving portion 63 on the corrugated tube lead-out side.
As described above, the corrugated tube 2 can be smoothly bent along the curved wall 65 without being laterally bent.

In this embodiment, the receiving portion 63 is formed slightly deeper than the receiving portion 3 of the embodiment shown in FIG.
6, 67, the inner peripheral surface of each recess 68, ie, the sliding contact support portion 78
Is the lower circular arc portion 78a and the upper short vertical straight portion 78b
The corrugated tube 2 having a circular cross section is accommodated in the recess 68 to a height equal to or larger than the radius.

The lid portion 64 is formed to be slightly shallower than the lid portion 4 of the embodiment shown in FIG. 1, and the concave portions 70 of the front and rear wall portions 69 are formed to have a depth equal to or less than the radius of the corrugated tube 2.
The corrugated tube 2 is accommodated in the recesses 68 and 70 without back and forth play in a state where the cover 64 is closed to the receiving portion 63, and the sliding contact support portion 78 constituted by the inner peripheral surfaces of the recesses 68 and 70. , 79 engage in the concave grooves 11 of the corrugated tube 2 to support the corrugated tube 2 so as to be rotatable in the circumferential direction.

The pair of left and right curved walls 65 are formed so as to protrude from the front wall 66 of the receiving portion 63. The thickness of the curved wall 65 is equal to the thickness of the side wall 77 of the receiving portion 63, and it can be seen that the curved wall 65 is obtained by extending the side wall 77 forward.

The curved wall 65 is curved outwardly from both ends of the front wall 66 in an arc shape, and its radius of curvature is set, for example, to be equal to the maximum angle at which the wire harness, that is, the corrugated tube 2 is bent in an actual use state. preferable. The projecting length of the curved wall 65 is preferably set to a length such that the outer peripheral surface of the corrugated tube 2 (the peripheral surface of the protruding ridge 12) is in tangential contact with the inner surface 65a of the curved wall 65 as shown in FIG.

It is preferable that the width of both sides of the concave portion 68 of the front wall 66 of the receiving portion 63, that is, the interval between the straight portion 78b of the sliding contact support portion 78 and the base 65b of the curved wall 65 is as narrow as possible. The outer peripheral surface of the tube 2 contacts the inner surface 65a of the curved wall 65 with a larger area, and the operation of correcting the curvature of the corrugated tube 2 in FIG. 5, that is, the operation of correcting the wire harness including the corrugated tube 2 to a curved shape without bending is performed smoothly. . Therefore,
When the side wall 77 of the receiving portion 63 is relatively far away from the outer peripheral surface of the corrugated tube 2, the curved wall 65 is located not at an extension of the side wall 77 but at a position near the sliding contact support portion 78 on the front wall 66. It is preferable to arrange the base 65b.

The lower end of the pair of left and right curved walls 65 is
And continues across the bottom wall extension 80. Bottom wall extension 8
Numeral 0 denotes a portion extending horizontally from the bottom wall 81 of the receiving portion 63 to the front end 80a.
It is widened to the left and right according to the shape of a trumpet. The front end 80a of the bottom wall extension 80 and the front end 65c of the curved wall 65 may be positioned on the same plane in the vertical direction, and the corrugated tube 2 having a strong bending angle may be supported by the front end surface 65c of the curved wall 65. The bottom wall 81 and the bottom wall extension 80 can be viewed as a bottom wall together, and the curved wall 65 can be viewed as a part of the side wall.

As shown in FIG. 5, when the wire harness including the corrugated tube 2 is largely swung left or right as indicated by the arrow X, the lower end of the corrugated tube 2 is stably supported on the upper surface of the bottom wall extension 80, In addition, the corrugated tube 2 slides right and left on the bottom wall extension 80, and is smoothly and reliably guided to the curved wall 65. The curved wall 65 corrects the bending of the wire harness 2, that is, the wire harness is bent in an arc without bending. Is performed reliably.

The pair of front and rear sliding contact support portions 78 of the receiving portion 63 are arranged at a pitch which is an integral multiple of the pitch of the concave groove 11 of the corrugated tube 2, and the pair of front and rear sliding contact support portions 79 of the lid portion 64.
Opposes above the sliding contact support portion 78 of the receiving portion 63, and the lid portion 6
4 are opposed to both side walls 77 of the receiving portion 63. The cover part 64 is secured to the receiving part 63 by the locking means 16 and 17.
The receiving portion 63 is fixed to a vehicle body or the like by using, for example, a locking clip 13 (FIG. 1) similar to FIG.

In this state, even if the wire harness including the corrugated tube 2 is swung to the left or right almost horizontally as shown in FIG. 5, the outer surface of the corrugated tube 2 abuts on the inner surface of one of the curved walls 65. And smoothly bend, so that the corrugated tube 2 and the internal wires (not shown)
Are prevented from being damaged, and damage, disconnection, etc. due to scratching or repeated with time are prevented.

The swing of the wire harness also occurs at the time of wiring, but in addition, for example, a wire harness is routed from a vehicle body (not shown) to a slide door (not shown) to provide electrical components and the like on the slide door side. When always supplying power,
The present embodiment is also extremely effective in preventing the wire harness from swinging largely right and left with the opening and closing of the slide door, and preventing the wire harness from being bent due to the swing.

In FIG. 4, the pair of left and right curved walls 65 of the receiving portion 63 can be formed to extend upward and upward. In this case, the rear end of the curved wall 65 contacts the front wall 69 of the lid 64 when the lid 64 is closed. Curved wall 6
As the area of 5 increases, the portion that can be brought into contact with the corrugated tube 2 increases, and even if the wire harness swings upward, the curved wall 65 can accurately capture the corrugated tube 2. Instead of the receiving portion 63, a pair of left and right curved walls may be provided on both side walls 82 or the front wall 69 of the lid portion 64.

In FIG. 4, it is also possible to straighten the wire harness downward by bending the bottom wall extension 80 of the receiving portion 63 downward. In this case, for example, the corrugated tube fixing device is disposed on the step side of the vehicle body, and is applied to a structure in which the wire harness is routed downward from the step toward the sliding door. In addition to preventing damage due to friction between the lower end portion and the bottom wall extension portion 80, the wire harness can be bent downward in a corrective manner from the step side and can be smoothly routed into the slide door from the lower end side of the slide door. . When the downward curved wall is provided, it is needless to say that the fixing of the receiving portion 63 to the vehicle body or the like is performed so that the downward curved wall does not interfere with the vehicle body or the like.

Further, a pair of left and right curved walls 65 or downward curved walls can be integrally formed not only on the front side but also on the rear side of the receiving portion 63. Each curved wall 65 can be easily and inexpensively formed integrally with the receiving portion 63 by resin molding. Furthermore, it is also possible to provide an upward or sideways curved wall in the lid portion 64.

FIG. 6 shows a corrugated tube fixing tool 1 of a form (fourth embodiment) in which upper and lower, left and right curved walls 83 to 86 are provided on a receiving portion 3 ′ and a lid 4 ′ similar to the configuration of FIG. '. The same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description is omitted.

The depth of the receiving portion 3 'and the lid portion 4' are substantially the same, and the center line of the corrugated tube 2 is located on the same plane as the upper end 3a of the receiving portion 3 '. Both side walls 8 of receiving part 3 '
Curved walls 83 to 8 on the extension of the bottom wall 6, the extension of the side walls 22 of the lid 4 ′, and the extension of the top wall 20.
6 are formed to project. The right and left curved walls 83, 85 of the receiving portion 3 'and the lid portion 4' are formed to have the same curvature, length, and plate thickness. The curvature, length, and the like of the upwardly curved wall 86 of the lid 4 ′ and the downwardly curved wall 84 of the receiving portion 3 ′ are appropriately set according to the deflection angle of the corrugated tube 2.

When the cover 4 'is closed, the upper ends 83a of the pair of left and right curved walls 83 of the receiving portion 3' are joined to the lower ends 85a of the pair of left and right curved walls 85 of the cover 4 'to form a large area joint. A curved wall is formed, the right and left deflection of the wire harness including the corrugated tube 2 is accurately captured, and the wire harness is smoothly and reliably straightened without bending. Further, the downward curved wall 84 of the receiving portion 3 'and the lid portion 4'
With the upwardly curved wall 86, the wire harness including the corrugated tube 2 is smoothly and reliably corrected without bending, against the vertical swing of the wire harness.

The front wall 7 of the receiving part 3 ′ and / or the lid part 4 ′
Similar curved walls can be provided not only on the 21 side but also on the rear wall side. The curved walls 83 to 86 can be selectively formed at left, right, up, and down positions.

In the embodiment using the corrugated tube 32 having an oval cross section in FIG. 3, it is also possible to form the curved walls 65, 83 to 86 similar to the above in the receiving portion 36 and / or the lid portion 37. . In this case, the long diameter portion 42 of the corrugated tube 32 mainly comes into contact with the curved walls 65, 83 to 86, and is curved (corrected into a curved shape).

FIGS. 7 to 9 show a fifth embodiment of a corrugated tube fixing structure and a corrugated tube fixing device according to the present invention.

This corrugated tube fixing structure is a modified example of the second embodiment shown in FIG. 3, and the turning member 89 in the corrugated tube fixing device 88 is accompanied by the twist of the corrugated tube 32 due to the bending of the wire harness. At the same time, the turning member 89 can be moved in the longitudinal direction of the corrugated tube along the fixture main body 91 so that the corrugated tube 32 and the corrugated tube 3 can be moved.
2 to prevent pulling of electric wires (not shown) in the wire harness (corrugated tube 32) from the fixture body 91.
By changing (lengthening) the lead-out length of the wire harness, the bending radius of the wire harness is increased to prevent damage to the wire harness.

That is, the semicircular receiving portion 9 which is the inner diameter of the receiving portion 92 and the lid 93 constituting the fixing device main body 91.
A spiral cam groove 96 (only the cam groove of the receiving portion 92 is shown in FIG. 7) is formed in the fourth and fourth members 95 to form an annular rotating member 89 rotatably held in the receiving portions 94 and 95. To one of the pair of divided members 90, 90 '
At the outer diameter portion), a projection 97 for follow (slide engagement) with the cam groove 96 is provided, and the rotating member 89 is rotatable in the circumferential direction along the fixture main body 91 so as to be able to advance and retreat in the axial direction. I have.

The cam groove 96 has a rectangular cross section and needs to be formed in at least one of the receiving portion 92 and the lid portion 93. When the cam groove 96 is formed in both the receiving portion 92 and the lid portion 93 in FIG. 7, one end 96a and the other end of the cam groove 96 of the receiving portion 92 (FIG. 8 shows a plan view of the receiving portion 92 in FIG. 7). 96b is continuous with a cam groove (not shown) of the lid 93. The cam groove of the lid 93 has a start end and an end, and the driven protrusion 97 can abut on the start end and the end. in this case,
The corrugated tube 32 is rotatable within a range of approximately 360 °. The shape of the cam grooves 96 of the receiving portion 92 and the lid portion 93 may be exchanged to form the start end and the end of the cam groove 96 on the receiving portion 92 side. Alternatively, the cam groove 96 is provided only in the receiving portion 92.
And the joining surface 98 at the lower end of the lid 93 can be used as the starting surface 96a and the ending surface 96b of the cam groove 96, that is, the contact surface with the projection 97. In this case, a projection 97 for driving the lower divided member 90 'corresponding to the receiving portion 92 is provided, and the corrugated tube 32 is rotatable within a range of about 180 °.

The projection 97 has a single cylindrical shape, has an outer peripheral surface 97 a having a diameter smaller than the inner width of the cam groove 96, and is disposed at the center of the outer peripheral surface of one of the divided members 90. Protrusion 9
7 is preferably disposed on one of the divided members 90 or 90 ', whereby a large rotation angle can be obtained. When the projections 97 are provided on the divided members 90 and 90 ′, the projections 97 must be shifted in the harness longitudinal direction corresponding to the positions of the cam grooves 96 of the receiving portion 92 and the lid portion 93. , The rotation angle is also almost halved.

FIGS. 9A and 9B show a state in which the corrugated tube 32 is turned by 180 °, and the protrusion 97 of the turning member 89 slides from one side of the cam groove 96 to the other side. Accordingly, the rotating member 89 moves in the longitudinal direction of the corrugated tube. Thus, the length of the harness portion 32a on the right side from the fixture main body 91 in FIG. 9B is increased, the tension of the harness portion 32a is prevented, and the harness portion 32 is formed by the extra length of the harness portion 32a.
The bending radius of “a” is increased, thereby preventing an excessive force from being applied to the corrugated tube 32 and especially the internal electric wire (not shown), and preventing the corrugated tube 32 and the electric wire from being damaged.

For example, when the corrugated tube fixing member 88 (FIG. 7) is arranged on the vehicle body side of the automobile and the harness portion 32a is routed from the vehicle body to the slide door side, FIG. Time state, FIG. 9
(B) can be seen as the state when the slide door is fully closed. When the sliding door is fully opened, the harness portion 32a is bent and loosened, and when the sliding door is fully closed, the harness portion 32a is closed.
Is pulled in the sliding door closing direction, but the harness portion 32a is extended toward the slide door while rotating integrally with the rotating member 89, so that the pulling force is reduced, and the harness portion 32a from the fixture body 91 is reduced. Is bent with a large bending radius without difficulty, thereby preventing damage to the electric wires and the like as described above.

In FIG. 7, the configuration other than that described above is substantially the same as that of the embodiment of FIG. 3, and a detailed description thereof will be omitted.
The surfaces of the receiving parts 92 and 95 of the receiving part 92 and the lid part 93 and the surface of the outer diameter part of the rotating member 89 are formed smoothly without irregularities other than the cam groove 96 and the projection 97, so that the rotating member 89 can be made smooth. It is freely rotatable. On the inner diameter portion of the rotating member 89, a ridge 4 for engagement with the concave groove 40 of the corrugated tube 32 is provided.
8 are formed. In FIG. 7, reference numeral 58 denotes an engagement frame piece, 5
Reference numeral 6 denotes a locking projection, and 61 denotes a locking clip.

The rotating member 89 in the form of FIG. 7 has an oblong inner diameter corresponding to the flat corrugated tube 32, but has a circular shape corresponding to the round corrugated tube 2 (FIG. 1). It is also possible to use a rotating member having the inner diameter of the above. In this case, the circular inner diameter portion is set to be equal to or smaller than the outer diameter of the corrugated tube 2, and the corrugated tube 2 is fixed in the circumferential direction immovably at the inner diameter portion. With this configuration, sliding wear of the corrugated tube 2 with the fixture body 1 in the embodiment of FIG. 1 is prevented.

It is to be noted that the fixture main body 9 is not used instead of the rotating member 89.
It is also possible to provide a driven projection 97 and provide a cam groove 96 on the outer peripheral portion of the rotating member 89 instead of the fixture main body 91.

FIGS. 10 to 11 show a sixth embodiment of a corrugated tube fixing structure and a corrugated tube fixing device according to the present invention. In the fixing structure of the corrugated tube, the rotating member 101 of the corrugated tube fixing device 100 holds the corrugated tube 32 in an obliquely eccentric state, and the rotating member 101 is rotated inside the fixing device main body 103. At this time, the harness portion 32a (FIG. 11) derived from the rotating member 101 is bent with a large bending radius to prevent damage to the corrugated tube 32 and internal electric wires (not shown). Is what you do.

As shown in FIG. 10, the rotating member 101 is formed in a tapered shape by a pair of divided members 102 and 102 '.
One (front side) end face 106 of the rotating member 101 in the axial direction has a large diameter, and the other (rear side) end face 107 has a small diameter, and each end face 106, 107 is a perfect circle. A harness holding groove 108, which is an inner diameter part, is formed straight from the center of the rear end face 107 to the outer diameter part of the front end face 106, and the pair of holding grooves 108 are joined to form an oval harness holding hole (inner diameter part). ) 109 is formed.

The harness holding groove 108 of this embodiment corresponds to the flat (elliptical cross section) corrugated tube 32, and the harness holding groove 108 has a semicircular cross section for the corrugated tube 2 having a circular cross section (FIG. 1). (Not shown). The harness holding groove 108 is formed eccentrically in an oblique direction with respect to the axis of the rotating member 101, and
02 'extends parallel to the outer peripheral surface.

In each of the harness holding grooves 108, a pair of ridges 118 for engaging with the concave groove 40 of the corrugated tube 32 are provided on the front and rear, and the corrugated tube 32 is immovably held in the harness holding hole 109. . In the case of a circular corrugated tube 2, it is preferable that the corrugated tube 2 is held in the rotating member so as not to rotate in the circumferential direction.

A short columnar projection 110 for positioning and sliding with respect to the fixture body 103 is provided on the outer periphery of one or both of the divided members 102 and 102 ′ of the rotating member 101. In the case of the embodiment shown in FIG.
It is preferable that the protrusions 110 are arranged symmetrically to 102 ′ from the viewpoint of posture stability.

The fixture body 103 includes a receiving portion 104 and a lid portion 1.
The housing portions 111 and 112 on the inner diameter side of the receiving portion 104 and the lid portion 105 are formed in a tapered groove shape according to the shape of the rotating member 101. Each accommodation section 11
The outer diameter of the tapered hole formed by joining the first and second holes 112 is slightly larger than the outer diameter of the rotating member 101, and the rotating member 101 is held in the hole so as to be freely rotatable in the circumferential direction. Each accommodation section 11
On the smooth inner peripheral surface of the first and second 112, a guide groove 113 for the projection 110 is provided continuously in an annular shape. The groove 113 may be formed as an inclined or spiral cam groove 96 similarly to the embodiment of FIG. in this case,
It is preferable that the rotating member 101 has a cylindrical shape instead of a tapered shape from the viewpoint of preventing rattling.

Front wall 1 of receiving portion 104 of fixture body 103
A curved wall 65 for guiding a harness similar to that of the embodiment of FIG. 4 is formed on both sides of the outside 14 so as to open outward, and both curved walls 65 are connected by a flat bottom wall extension 80. The root of each curved wall 65 is orthogonal to the front wall 114. A locking projection 116 is provided on both side walls 115 of the receiving portion 104, and an engagement frame piece 117 is provided on both side walls of the lid portion 105.

The flat corrugated tube 32 is fixedly accommodated and held between the pair of divided members 102, 102 ′, that is, the rotating member 101, and the rotating member 101 is accommodated between the receiving portion 104 and the lid 105. To be rotatable in the circumferential direction. The projection 110 is slidably engaged in the guide groove 113, and the locking projection 116 is engaged with the engagement frame piece 117.

In this state, when a torsion force acts on the wire harness as shown in FIG. 11A and the wire harness is bent rightward, the turning member 101 turns accordingly, and the harness is held. The hole 109 is inclined in the harness bending direction, and the center of the front end side of the harness holding hole 109 is eccentric (S) toward the harness bending side with respect to the center of the rear end side. Thereby, the wire harness, that is, the corrugated tube 32 and the internal electric wire are bent with a large bending radius R. That is, the wire harness bends in a substantially arch shape from the rear end 109a of the harness holding hole 109 to the inside 65c of the front end of the front curved wall 65.

This is because the rotating member 101 has the harness holding hole 109 eccentric in the oblique direction. For example, the rotating member 101 has the inner diameter portion 35 in the axial direction as shown in FIG. In the case of the member 33, the wire harness bends with a small bending radius from the center of the front end of the rotating member 33 to the inside of the front end of the curved wall 65 instead of the rear end 109a of the harness holding hole 109, so that the wire harness cannot be easily moved. A large bending force acts.

According to the embodiment shown in FIG. 10, no excessive bending force acts on the wire harness, and the corrugated tube 32 and the electric wires are prevented from being damaged. At the time of bending, the wire harness smoothly curves along the front end inner side 65c of the curved wall 65.
The bending direction is preferably the short-axis direction of the flat corrugated tube 32 from the viewpoint of flexibility. In particular, since the turning member 101 is formed in a tapered shape along the harness holding hole 109, the turning member 1 can be rotated in accordance with the twist of the wire harness.
01 rotates smoothly without being caught, and the torsion of the wire harness is accurately absorbed.

When a reverse torsional force acts on the wire harness from the state shown in FIG. 11A, the wire harness is rotated by 180 ° integrally with the rotating member 101 as shown in FIG. 11B. 11A, the curved wall 65 is bent with a large bending radius due to the eccentricity S, and is on the opposite side to FIG. 11A.
And the wire harness is prevented from being bent. Even when the curved wall 65 is not provided, it goes without saying that the wire harness is bent with a large bending radius by the harness holding hole 109 eccentrically inclined.

The state shown in FIG. 11A can be regarded as, for example, the fully opened state of the sliding door of the automobile, and the state shown in FIG. 11B can be regarded as the fully closed state of the sliding door. The wire harness is twisted while being pulled in the opening direction when the sliding door is opened, and is twisted while being pulled in the closing direction when the sliding door is closed. When the sliding door is opened and closed, the wire harness rotates in the circumferential direction and smoothly bends with a large bending radius while absorbing torsion, thereby preventing damage to the wire harness.

Note that, as in the embodiment of FIG.
It is also possible to provide curved walls 84 and 85 on the bottom side of the receiving portion 104 as well. Further, as described above, the cam groove 9 shown in FIG.
6 can also be applied. In addition, the rotating member 101
It is also possible to provide a guide groove 113 on the base and a projection 110 for slide engagement on the fixture body 103. Further, it is also possible to form the rotating member 101 not in a tapered shape but in a columnar shape as in FIG. In this case, the accommodating portions 111 and 112 of the holder main body 103 also have a uniform inner diameter according to the rotating member 101.

[0097]

As described above, according to the first and seventh aspects of the present invention, a wire harness using a corrugated tube having a circular cross section is formed along a two-dimensional or three-dimensionally bent panel of a vehicle body or the like. Even when a torsional force is applied to the corrugated tube when laying and fixing the corrugated tube, the corrugated tube rotates in the circumferential direction along the sliding contact support portion of the fixture, thereby absorbing the torsional force. ), No excessive torsional stress acts on the corrugated tube, the deformation and breakage of the corrugated tube, the opening of the slit for inserting the electric wire, etc. are reliably prevented, and the tensile force associated with the torsion of the corrugated tube. Is alleviated, and detachment of the fixture from the panel or the like is prevented.

Further, according to the second, ninth and tenth aspects of the present invention, a wire harness using a so-called flat corrugated tube having an elliptical cross section is formed in a two-dimensional or three-dimensionally bent panel such as a vehicle body. Even when a torsional force is applied to the flat corrugated tube when it is routed and fixed along the flat corrugated tube, the flat corrugated tube rotates circumferentially integrally with the rotating member along the fixture body. Because of this, the torsional force is absorbed (released), so that no excessive torsional stress acts on the flat corrugated tube, and the flat corrugated tube is deformed or damaged, and the opening of the slit for inserting the electric wire is opened. Is reliably prevented, the tensile force associated with the twisting of the flat corrugated tube is reduced, and the fixture is prevented from coming off the panel or the like. In particular, claim 9
According to the described invention, any one of a corrugated tube having a circular cross section and a corrugated tube having an oval cross section can be selectively used, and it is versatile and economical.

According to the third and thirteenth aspects of the invention, for example, when a wire harness is routed from a vehicle body of an automobile to a slide door, the wire harness is bent and twisted as the slide door is opened and closed. While being pulled in the opening and closing direction of the slide door (particularly when the door is fully closed), the turning member moves in the longitudinal direction of the harness while rotating along the cam groove, thereby allowing the vehicle body and the slide door to move between the vehicle body and the slide door. The wire harness stretches between and absorbs the tensile force,
In addition, since the wire harness is bent at a large bending radius, damage to the wire harness, that is, the corrugated tube and the internal electric wire over time is prevented.

According to the fourth and fifteenth aspects of the present invention, for example, when the wire harness is pulled in the sliding door opening / closing direction while being bent and twisted with the opening / closing of the sliding door, the turning member is connected to the harness. Since the wire harness rotates in the pulling direction and is eccentrically inclined in the bending direction in the rotating member, the bending radius of the wire harness becomes larger than in a case where the wire harness is not eccentric. The force is prevented from acting, and the corrugated tube and the internal electric wires are prevented from being damaged over time. Further, by the combination with the invention described in claim 3,
The increase and the eccentricity of the wire harness are performed at the same time, and the wire harness is more reliably prevented from being damaged.

Further, according to the fifth aspect of the present invention, the wire harness led out in a curved shape from the rotating member is supported along the curved wall (for example, on the distal end side of the curved wall),
The bend radius of the wire harness is defined to be larger, thereby preventing the wire harness from being bent or the like, so that the corrugated tube and the electric wire are more reliably prevented from being damaged.

According to the sixth aspect of the present invention, by using a flat corrugated tube, the fixing structure can be made thinner (smaller) and, for example, when the sliding door is opened and closed, the corrugated tube has a shorter diameter. By bending the wire harness in the direction, the flexibility of the wire harness can be increased, and the corrugated tube or the like can be prevented from being damaged over time.

According to the eighth aspect of the present invention, the lower half of the corrugated tube is engaged with the recess of the receiving portion, and the upper half of the corrugated tube is engaged with the recess of the lid. The tube can be easily and reliably supported by the two concave portions, and the assembling workability is improved. Further, if a concave portion is formed in, for example, the wall portions on both sides of the receiving portion and the lid portion, the corrugated tube can be stably held at two locations in the longitudinal direction.

According to the eleventh aspect of the present invention, the flat corrugated tube having an elliptical cross section can be easily fixed by being sandwiched between the divided rotary members, and the assembling workability is improved. . In addition, since the rotating member is divided, the structure of the rotating member for fixing the flat corrugated tube is simplified, and the structure of the resin molding die is also simplified.
The parts cost is reduced.

According to the twelfth aspect of the present invention, the ridge and / or groove on the outer periphery of the rotating member is guided by the slidable contact groove and / or the slidable contact protrusion between the receiving portion and the lid. Rotate smoothly and securely in the direction. Thereby, the twist at the time of wiring the corrugated tube is more reliably absorbed.

According to the fourteenth aspect of the present invention, when the wire harness is twisted and the rotating member rotates, the end and the beginning of the cam groove act as stoppers for the projection, and the projection is the beginning of the cam groove. Alternatively, by contacting the terminal end, further rotation of the rotating member, that is, twisting of the wire harness is prevented, and damage due to excessive twisting of the electric wire and the corrugated tube is prevented.

According to the present invention, for example, when the wire harness is largely bent and routed to a vehicle body or the like, the outer periphery of the corrugated tube of the wire harness is provided on the curved wall of the corrugated tube fixing device. Since the surfaces abut, the wire harness is smoothly bent along the curved shape of the curved wall without being bent, so that the corrugated tube and the internal electric wires are prevented from being damaged or deformed. This effect is not limited to the case of arranging the wire harness, but is also obtained, for example, when the wire harness is arranged from the vehicle body to the slide door, and the wire harness swings greatly with the opening and closing operation of the slide door. Things.

According to the eighteenth aspect of the present invention, the operation of closing the lid portion to the receiving portion is facilitated, and the engagement and rotation of the sliding contact support portion of the lid portion with the groove of the corrugated tube are facilitated. The engagement of the sliding contact groove of the lid with the groove of the member is enhanced, and the assembling work is facilitated and assured. According to the nineteenth aspect, the fixing operation of the receiving portion and the lid portion can be easily performed with one touch by the locking means, and the assembling property is improved.

Further, according to the twentieth aspect, the fixing tool can be easily fixed to the vehicle body or the like with a single touch by the locking clip. In addition, since the locking clip is rotatable in the hole of the vehicle body or the like, the fixture is rotatable in the bending direction of the corrugated tube, thereby absorbing and relaxing the tension of the corrugated tube,
Damage and deformation due to the bending of the corrugated tube and detachment of the fixture are prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a corrugated tube fixing structure and a corrugated tube fixing device according to the present invention.

FIG. 2 is a sectional view corresponding to AA in FIG.

FIG. 3 is an exploded perspective view showing a corrugated tube fixing structure and a corrugated tube fixing device according to a second embodiment of the present invention.

FIG. 4 is an exploded perspective view showing a third embodiment of a corrugated tube fixing structure and a corrugated tube fixing device according to the present invention.

FIG. 5 is a plan view showing a state in which a wire harness is straightened in the third embodiment.

FIG. 6 is an exploded perspective view showing a fourth embodiment similar to the third embodiment.

FIG. 7 is an exploded perspective view showing a fifth embodiment of a corrugated tube fixing structure and a corrugated tube fixing device according to the present invention.

FIG. 8 is a plan view showing one embodiment of a cam groove of the fixture body.

FIG. 9A is a plan view showing a state where the wire harness is twisted in one direction, and FIG. 9B is a plan view showing a state where the wire harness is twisted in another direction.

FIG. 10 is an exploded perspective view showing a corrugated tube fixing structure and a corrugated tube fixing device according to a sixth embodiment of the present invention.

11A is a cross-sectional view showing a state where the wire harness is bent in one direction, and FIG. 11B is a cross-sectional view showing a state where the wire harness is bent in another direction.

FIG. 12 is a perspective view showing a conventional corrugated tube fixing structure.

[Explanation of symbols]

1, 1 ', 39, 62, 88, 100 Corrugated tube fixture 2, 32 Corrugated tube 3, 3', 36, 63, 92, 104 Receiving part 4, 4 ', 37, 64, 93, 105 Lid 9 , 23, 68, 70 Concave portions 10, 24, 78, 79 Sliding contact support portions 11, 40 Concave grooves 12, 41 Protrusions 13, 61 Locking clips 16, 56 Locking projections (locking means) 17, 58 Engagement Frame piece (locking means) 27 Hole 28 Mounting side 33, 89, 101 Rotating member 34, 90, 90 ', 102, 102' Dividing member 35, 109 Inner diameter portion (harness holding hole) 38, 91, 103 Fixed Tool body 46, 48 Protrusion 47 Peripheral groove 53 Sliding contact groove 54 Sliding contact protrusion 65, 83-86 Curved wall 96 Cam groove 97, 110 Projection

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H02G 3/04 H02G 3/26 D 3/38 3/28 F (72) Inventor Mitsunori Tsunoda Susono, Shizuoka (72) Inventor Hiroshi Watanabe 1500 Yazaki Sogyo Co., Ltd. DC02

Claims (20)

[Claims] A wire harness is formed by inserting a plurality of electric wires inside a corrugated tube having a circular cross section having alternating circumferential grooves and ridges, and the corrugated tube is attached to a vehicle body or the like. In a fixing structure of a corrugated tube fixed to a fixing device, a sliding contact support portion of the fixing device is slidably engaged with a concave groove of the corrugated tube, and the corrugated tube is circumferentially rotated by the sliding contact support portion. A corrugated tube fixing structure that is movably supported. 2. A wire harness is formed by inserting a plurality of electric wires inside a corrugated tube having alternating circumferential grooves and ridges, and the corrugated tube is fixed to a mounting side of a vehicle body or the like. In the fixing structure of a corrugated tube to be fixed by the above, it is preferable that the corrugated tube is fixed inside a rotating member having a circular outer periphery, and the rotating member is rotatably held in a circumferential direction inside the fixture body. Characteristic corrugated tube fixing structure. 3. A cam groove is provided on one of the fixture main body and the rotating member, and a protrusion is provided on the other of the fixing member main body and the rotating member so as to follow the cam groove. 3. The structure for fixing a corrugated tube according to claim 2, wherein the structure is movable at the same time in the longitudinal direction of the wire harness. 4. An inner diameter portion for holding the corrugated tube immovably is provided on the rotating member so as to be eccentric in an oblique direction, and the wire harness can be bent with a large bending radius in an eccentric direction of the inner diameter portion. The corrugated tube fixing structure according to claim 2 or 3, wherein the corrugated tube is fixed. 5. The fixing structure for a corrugated tube according to claim 4, wherein a curved wall for the wire harness is provided on the fixture body on an eccentric side of the inner diameter portion. 6. The corrugated tube fixing structure according to claim 2, wherein the corrugated tube has an oval cross section. 7. A corrugated tube fixing device for fixing a corrugated tube having a circular cross section having alternating circumferential grooves and ridges to a mounting side of a vehicle body or the like, wherein the corrugated tube is rotatable in a circumferential direction. A corrugated tube fixing device, comprising a receiving portion and a lid portion for holding the sliding portion, wherein the receiving portion and the lid portion include a sliding contact support portion slidably engaged with the concave groove. . 8. The device according to claim 7, wherein said receiving portion and said lid portion have a semicircular or arcuate concave portion facing each other, and said sliding contact support portion is formed on a peripheral edge of each concave portion. Corrugated tube fixture. 9. A rotating member for fixing a corrugated tube having an elliptical cross section having alternating circumferential grooves and ridges to the inside thereof, wherein the rotating member is provided between the receiving portion and the lid portion. 9. The corrugated tube fixing device according to claim 7, wherein the corrugated tube fixing device is held rotatably in a circumferential direction. 10. A corrugated tube fixing device for fixing a corrugated tube having a circular cross section or an elliptical cross section having alternating circumferential grooves and ridges to a mounting side of a vehicle body or the like, wherein the corrugated tube is provided inside. A corrugated tube fixing device comprising: a rotating member to be fixed; a receiving portion for holding the rotating member rotatably in a circumferential direction; and a lid portion. 11. The rotating member is dividable, and each of the dividing members has an inner diameter portion having a circular or oval cross section corresponding to the shape of the corrugated tube, and the inner diameter portion has the concave portion of the corrugated tube. The corrugated tube fixing device according to claim 10, wherein a ridge engaging with the groove is formed. 12. A ridge and / or a circumferential groove is provided on an outer periphery of the rotating member, and a slidable engagement of the ridge and / or the circumferential groove with the receiving portion and the lid portion is provided. The corrugated tube fixing device according to claim 10, wherein a contact groove and / or a sliding contact protrusion are formed. 13. A cam groove is provided on one of the rotating member and the receiving portion and / or the lid portion, and a protrusion for following the cam groove is provided on one of the other. The corrugated tube fixing device according to claim 10 or 11, wherein: 14. The corrugated tube fixing device according to claim 13, wherein the cam groove has a starting end and a terminating end, and the driven protrusion can contact the starting end and the terminating end. 15. The rotating member, and the respective receiving portions for holding the rotating member rotatably and the receiving portions of the lid are formed in a tapered shape, and the inner diameter portion of the rotating member has an inner diameter. The eccentrically provided eccentricity is provided in an oblique direction.
The corrugated tube fixing device according to the above. 16. The receiving part and / or the lid part is provided with an outwardly curved wall for abutting an outer peripheral surface of the corrugated tube to prevent a wire harness including the corrugated tube from being bent. Claims 7-1
6. The corrugated tube fixing device according to any one of 5. 17. The corrugated tube fixing device according to claim 16, wherein the curved wall is provided so as to face left and right and / or up and down on a lead-out side of the corrugated tube. 18. The corrugated tube fixing device according to claim 7, wherein said receiving portion, said lid portion and / or each of said divided members are rotatably connected by a hinge. 19. The corrugated tube fixing device according to claim 7, wherein said receiving portion and said lid portion are fixed by locking means. 20. The corrugate according to claim 7, wherein a locking clip that is inserted into and engaged with a hole on the mounting side of the vehicle body or the like is protruded from the receiving portion. Tube fixture.